<template>
  <div class='login-container'>
    <el-form
      ref='formRef'
      :model='loginForm'
      :rules='loginRules'
      class='login-form'
      auto-complete='on'
      label-position='left'
    >
      <div class='title-container'>
        <h3 class='title'>尚品汇后台管理</h3>
      </div>

      <el-form-item prop='username'>
        <span class='svg-container'>
          <svg-icon name='ele-UserFilled' />
        </span>
        <el-input
          ref='username'
          v-model='loginForm.username'
          placeholder='Username'
          name='username'
          type='text'
          tabindex='1'
          auto-complete='on'
        />
      </el-form-item>

      <el-form-item prop='password'>
        <span class='svg-container'>
          <svg-icon name='ele-Lock' />
        </span>
        <el-input
          :key='passwordType'
          ref='passwordRef'
          v-model='loginForm.password'
          :type='passwordType'
          placeholder='Password'
          name='password'
          tabindex='2'
          auto-complete='on'
          @keyup.enter='handleLogin'
        />
        <span class='show-pwd' @click='showPwd'>
          <svg-icon :name="passwordType === 'password' ? 'ele-Hide' : 'ele-View'" />
        </span>
      </el-form-item>

      <el-button
        :loading='loading'
        type='primary'
        style='width: 100%; margin-bottom: 30px; height: 40px'
        @click.prevent='handleLogin'
      >登 陆
      </el-button>
    </el-form>
  </div>
</template>

<script lang='ts'>
export default {
  name: 'LoginView'
}
</script>

<script lang='ts' setup>
import { useUserInfoStore } from '@/stores/userInfo'
import type { FormInstance } from 'element-plus'
import { nextTick, ref, watch } from 'vue'
import { useRoute, useRouter } from 'vue-router'
import { ElMessage } from 'element-plus'

const userInfoStore = useUserInfoStore()
const route = useRoute()
const router = useRouter()
const loginForm = ref({
  username: 'admin',
  password: '111111'
})
const loading = ref(false)
const passwordType = ref('password')
const redirect = ref('')
const passwordRef = ref<HTMLInputElement>()
const formRef = ref<FormInstance>()

const loginRules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 4, message: '用户名不得少于4位', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 6, message: '密码不得少于6位', trigger: 'blur' }
  ]
}

watch(
  route,
  () => {
    redirect.value = route.query && (route.query.redirect as string)
  },
  { immediate: true }
)

/*
切换密码的显示/隐藏
*/
const showPwd = () => {
  if (passwordType.value === 'password') {
    passwordType.value = 'text'
  } else {
    passwordType.value = 'password'
  }
  nextTick(() => {
    passwordRef.value?.focus()
  })
}

/*
点击登陆的回调
*/
const handleLogin = async () => {
  await formRef.value?.validate()
  loading.value = true
  const { username, password } = loginForm.value
  try {
    await userInfoStore.login(username, password)
    router.push('/')
  } catch (error) {
    // eslint-disable-next-line no-undef
    ElMessage.closeAll()
    ElMessage.error('登录失败！')
  } finally {
    loading.value = false
  }
}
</script>

<style lang='scss'>
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  background-image: url(../../assets/bg.jpg);
  background-color: #2d3a4b;
  background-size: cover;

  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    .el-input__wrapper {
      width: 100%;
      background-color: transparent;
      box-shadow: none;

      input {
        background: transparent;
        border: 0px;
        appearance: none;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        color: $light_gray;
        height: 47px;
        caret-color: $cursor;

        &:-webkit-autofill {
          box-shadow: 0 0 0px 1000px $bg inset !important;
          -webkit-text-fill-color: $cursor !important;
        }
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang='scss' scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 10px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
